WolfRathmA
Member
Dr. Zoidberg was right for the Xbox One X. When HDR signal is detected, One X switches to 4:2:0 30bits per pixel (10bit) when you Unselect the YCC 422 option from advanced settings. If you check the YCC 422 you are getting 4:2:2 24bits per pixel (8bit).
On PS4 Pro now, you don't have the option to do that, only if you go to video output settings and select the YUV420 in order to get 4:2:0 30bits per pixel (10bit). Otherwise (on automatic) you are getting 4:2:2 24bits per pixel (8bit). I've tested only on Gran Turismo Sport and Last of Us.
8bit gives 16.777.216 colors combinations
10bit gives 1.073.741.824 colors combinations
4:2:0 vs 4:2:2 you can't spot the differences with naked eye. Only if you are a colorist, photographer etc and you are using a 10bit monitor, then you need the max chroma sub-sampling.
The encoding for HDR is 4:2:0 for bluray movies as Dr. Zoidberg said. This is the same encoding also for videogames?
edit:
I read a comment on youtube HDTVtest channel. I quote it below. He's has a point for the PS4 Pro also.
On PS4 Pro now, you don't have the option to do that, only if you go to video output settings and select the YUV420 in order to get 4:2:0 30bits per pixel (10bit). Otherwise (on automatic) you are getting 4:2:2 24bits per pixel (8bit). I've tested only on Gran Turismo Sport and Last of Us.
8bit gives 16.777.216 colors combinations
10bit gives 1.073.741.824 colors combinations
4:2:0 vs 4:2:2 you can't spot the differences with naked eye. Only if you are a colorist, photographer etc and you are using a 10bit monitor, then you need the max chroma sub-sampling.
The encoding for HDR is 4:2:0 for bluray movies as Dr. Zoidberg said. This is the same encoding also for videogames?
edit:
I read a comment on youtube HDTVtest channel. I quote it below. He's has a point for the PS4 Pro also.
I'd recommed against YUC422 unless your tv or projector doesn't support a 10 bit YCbCr 4:2:0 signal. Why? Vincent explains it himself: HDR games and movies render at 10 bit 4:2:0 which again needs to be decoded to a 10 bit RGB signal by the display device before being shown on screen. In other words, the upconversion to 12 bit 4:2:2 is an unnecessary extra step which might introduce all kinds of unwanted side effects depending on how good the Xbox upconversion algorithm is and how well the display device handles the incoming 12 bit 4:2:2 signal. One important thing to consider is that there are no native 12 bit panels yet. All current tv's are either 8 bit or 10 bit and not all handle incoming 12 bit signals well resulting in visible banding, washed out colors and other unwanted side effects.
Other than that I agree with Vincent's other points.
Bottom line:
For Xbox One, unselect YUC422 and select 8-bit color depth for the best possible IQ in HDR and SDR games.
Off topic:
The settings for PS4 Pro are more complicated. For SDR games make sure to select AUTO (or RGB). For HDR games you need to manually select "YUV420" instead of RGB (Auto). Otherwise the console will send a 12 bit 4:2:2 signal. Also be aware that the PS4 Pro unfortunately doesn't support a native 10 bit HDR signal on all HDR capable tv's. For instance it sends a 12 bit 4:2:0 to my LG B7 OLED tv even when I manually select "YUV420" in the settings menu. Still I recommend the YUV420 setting over RGB (Auto) for HDR games since it doesn't alter chroma subsampling.